A protecting group-free divergent synthesis of natural benzofurans <i>via</i> one-pot synthesis of 2-bromo-6-hydroxybenzofurans
作者:Aneesh Sivaraman、Dipesh S. Harmalkar、Jiyoon Kang、Yongseok Choi、Kyeong Lee
DOI:10.1039/c8ob03102a
日期:——
2-Bromo-6-hydroxybenzofurans are potentially versatile intermediates for the divergent synthesis of numerous benzofuran-based natural products and their analogues. Herein we report the first one-pot strategy for the efficient synthesis of 2-bromo-6-hydroxybenzofurans. The present protocol provides shorter routes for the synthesis of moracins M, N, O and P; gramniphenols F and G; and morunigrol C using a protecting
2-溴-6-羟基苯并呋喃可能是多种基于苯并呋喃的天然产物及其类似物的多样化合成的通用中间体。本文中,我们报告了第一种高效合成2-溴-6-羟基苯并呋喃的一锅法。本方案提供了较短的路线,用于合成丝氨酸蛋白M,N,O和P;角酚F和G; 和莫瑞格洛尔C采用无保护基的方法。